Genomic fragment including the Hr4 gene, from BAC clone CH322-137G06. A EGFP-Tag:CALI(TC)-Tag:StrepII-Tag:CS(TEVp)-3xTag:FLAG tag cassette has been introduced at the C-terminal end of the Hr4 gene.
The Hr4 GFP trap was detected in border cells at the time of their specification and in outer follicle cells including centripetal cells.